Question

Look, this is the first plane in the world to be created using the new technology of “3D printing”. The airplane was built using only a computer-but it can fly at a speed of 100mph and has a two-meter wingspan.

It was produced using a special nylon laser printer that builds up something layer-by-layer. The parts were made separately and attached using a “snap fit”（搭扣） technique so the aircraft could be put together without tools in minutes.

No fasteners(扣件) at all were used in the manufacture of the plane. Unmanned and electrically powered, the plane can travel in near silence and is also equipped with a small autopilot system. The special production process used is known as “l(fā)aser sintering(激光燒結) “and allows the designers to create shapes and structures that would normally include costly manufacturing techniques. This technology allows a highly-tailored aircraft to be developed from your own design to first flight in days, while using traditional materials and techniques would take months. And because no tooling is required for manufacture, major changes to the shape and scale of the aircraft can be made with no extra cost.

Professor Jim Scanlon, who led the team, said, “The process allows the design team to revisit historical techniques and ideas that would have been too expensive using traditional manufacturing.” He added, “This form of structure is very firm and lightweight, but very complex. If it was manufactured traditionally it would require a large number of individually tailored parts that would have to be connected or fastened at great expense.”

The new printed plane is known as the Southampton University Laser Sintered Aircraft-or SULSA for short-and is part of a wider project using cutting-edge manufacturing techniques. The University of Southampton has been at the leading position of Unmanned Aerial Vehicle development since the early 1990s.

1. What does the passage maily talk about?

A. New Designed Airplane with New Techniques.

B. Scientists Create Aircraft with High Speed.

C. Revolut ionary Breakthrough of 3D Printer.

D. The World’s first 3-D printed Airplane, SULSA.

2. How does the 3-D printed plane fly?

A. A pilot controls it using a remote control.

B. It should be controlled by “l(fā)aser sintering”.

C. It should be controlled by an autopilot system.

D. A pilot with high techniques controlled it.

3. Which of the following is NOT advantage of the plane?

A. It only requires simple and cheap tools.

B. It is manufactured in quite a short time.

C. It produces little noise while flying.

D. It needn’t extra cost if changes are made.

4. Accoding to Professor Jim Scanlon, plane manufacturers can

with their techniques.

A. copy earlier planes to study their techniques

B. connect and fasten tailor parts for real planes

C. produce firmer and lighter real planes

D. find differences by studying the traditional ones

 

Answer 1

1.D

2.C

3.A

4.C

【解析】

試題分析:本文是一篇說明文，介紹了世界上第一個用“3D printing”技術制造出的飛機。這架飛機是完全利用電腦合成的，飛行速度可以達到每小時100米。這架飛機的成功可以推動此項技術的發(fā)展，從而可以造出更輕更堅固的飛機。

1.主旨大意題。文章開門見山向人們介紹利用“3D printing”這項新技術制造的飛機。然后在以下段落中分別介紹了制作原理和飛機的特點等，由此判斷文章主要內容是介紹這種利用新技術制造的飛機，選D。

2.細節(jié)理解題。根據(jù)文章第三段內容 Unmanned and electrically powered, the plane can travel in near silence and is also equipped with a small autopilot system.可知答案選C。

3. 細節(jié)理解題。由文章第二段內容so the aircraft could be put together without tools in minutes.可知這款新型飛機的組裝不需要任何工具，故A選項內容不是飛機的優(yōu)點。

4.推理判斷題。從文章倒數(shù)第二段This form of structure is very firm and lightweight, but very complex.可以推斷利用這種技術科學家們能制造出更堅固更輕的飛機，選C。

考點：考查科普類短文閱讀